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Subaru
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2022
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WRX Premium, Standard Trans
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Repair and Diagnosis (Single Page)
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Brakes
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Parking Brake System
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Parking Brake Assembly (Rear Disc Brake)
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Inspection
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Except For The Electronic Parking Brake Model
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Check Disc Rotor Inner Diameter
Check Disc Rotor Inner Diameter
Using a caliper, check the inner diameter of the brake disc rear.
Courtesy of SUBARU OF AMERICA, INC.
Value in a brand-new state
Wear limit
Disc rotor inner diameter
190 mm (7.48 in)
191 mm (7.52 in)
If the wear limit is exceeded or scoring or worn is found on the disc in the inspection, replace the brake disc rear.